And oscar a



(No Model.) I

P. W. WRIGHT &; O. A. LOGAN. BOOK MAILING CORNER.

No. 536,315. Patented Mar. 26, 1895.

y/ Q 0/, W I 5M FLINT W. WRIGHT, OF WORCESTER, MASSACHUSETTS, AND OSCAR A. LOGAN,

PATENT OF ICE.

OF NEW YORK, N. Y.

BOOK-MAILING CORNER.

SPECIFICATION forming part of Letters Patent No. 536,315, dated March 26, 1895. Application filed November 22, 1892 Serial No. 452,7 77- (No model.)

T0 at whom it may concern..-

Be it known that we, FLINT W. WRIGHT, a resident of Worcester, in the county of Worcester and State of Massachusetts, and OSCAR A. LOGAN, a resident of New York, in the county and State of New York, citizens of the United States, have invented a new and useful Improvement in Boolf-Mailing Corners, of which the following is a specification, reference being had to the accompanying drawings, forming a part of the same, and in which- Figure 1 represents the sheet metal blank of which the corner is made. Fig. 2 represents the paper blank which is folded over and forms a covering for the sheet metal blank. Fig. 3 represents the sheet metal blank, laid upon the paper blank preparatory to folding the paper blank over the sheet metal blank. Fig. 4 represents the sheet metal blank with the paper folded over it. Fig. 5 represents the same with the left hand upper corner folded down upon the body of the blank and Fig. 6 represents the same with the right hand upper corner folded over with the edges'of the folded corners overlapping and showing a completed book mailing corner embodying our invention.

Similar letters refer to similar parts in the diiferent figures.

Our invention relates to a metallic corner plate adapted to inclose the corner of a book cover to protect it and it is designed to be applied to the corners of the cover when the book is to be transmitted through the mail.

Our book mailing corner is constructed as hereinafter described and represented by the accompanying drawings, in which A denotes a thin plate of sheet metal, which, for the corner of an ordinary book is about two and one-quarter inches in length by one and one quarter in width. Two of its corners are preferably rounded as at B, B, and its opposite edge is provided with'a small notch O and a wing D. The sheet metal plate A is covered with paper which is cut in the form of the blank E, Fig. 2, upon which the sheet metal plate A is laid as shown in Fig. 3 and the corners a, a, a, of the paper blank are folded on the broken lines b, b, I), over the edge of the metal plate A as represented in Fig. 4, forming the covering for the sheet metal plate.

The triangular paper blank E is wide enough to extend beyond the rounded corners B, B of the sheet metal in the direction of the lines o, 0, so the lines b, of fold, will cross each other, as represented in Fig. 2 and cause the edges of the paper blank, when folded down upon the sheet metal in the manner represented in Fig. 4, to overlap each other and also to overlap the lines o, 6 extending from the notch O to the center of the rounded corners so that when the sheet metal plate is folded on the lines 0, 0, each of the overlapping edges of the paper blank will be folded, thereby locking the paper blank in position and prevent its displacement as the completed corner is used. The left hand upper corner F, of the covered plate is then bent over upon the central section of the plate A, as shown in Fig. 5. The upper right hand corner G is similarly bent over as represented in Fig. 6, the two corners F and G being bent upon lines o, 0, running from the'notch O to the center of the rounded corners B, B. When the corner G has been bent over, upon the central section of the metal blank, the wing-piece D will overlap the edge 01, thereby breaking the joint and aiding in preserving the form of the folded plate as any pressure within the folded corner to open the corners F and will be resisted by both corners.

When the corners F and G are folded, they are bent over a plate of nearly the thickness of the book cover, upon which the corner is to be used, so that when the corner is completed, as shown in Fig. 6, a space will be left between the central section of the plate and the folded corners F, G, to allow the corner of the oover.to beinserted between them. When the mailing corner has been completed by the folding of the sheet metal blank, as above described, it forms a corner which is triangular in shape without projecting corners, such as would be formed were the corner to have two members, or limbs, arranged on the adjacent sides of a right angle.

What we claim as our invention, and desire to secure by Letters Patent, is

1. The combination of a sheet metal plate having two adjacent corners folded over upon the body of the plate by oblique folds and a triangular paper cover having its corners folded overupon said plate with the edges of the folded paper cover overlapping each other 5 and also overlapping the line of folds of said sheet metal plate, whereby said paper cover is locked in position by the folding of said metal plate, substantially as described.

2. The combination of a sheet metal plate 10 A having a notch C midway one of its sides,

and a wing D extending from said notch to the corner of said plate, a triangular paper cover projecting beyond the corners of said sheet metal plate and having its corners folded I5 over upon the body of said sheet metal plate,

said sheet metal plate being folded by two oblique folds extending from said notch to the opposite corners, with the wing D overlapping the opposite folded corner and forming a triangular shaped book mailing corner, 20 substantially as described.

FLINT W. WRIGHT. OSCAR A. LOGAN.

Witnesses to signature of Flint W. \Vright:

RUFUS B. FOWLER, EMMA KESTER.

Vitne'sses to signature of Oscar A. Logan:

RUFUS B. FOWLER, H. W. FOWLER. 

